<template>
  <div>
    <el-form ref="deptForm" :model="form" :rules="formRules" label-width="120px">
      <el-form-item label="部门名称" prop="name">
        <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item label="部门编码" prop="code">
        <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item label="部门负责人" prop="manager">
        <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
          <el-option v-for="item in list" :key="item.id" :value="item.username" :label="item.username" />
        </el-select>
      </el-form-item>
      <el-form-item label="部门介绍" prop="introduce">
        <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
        <el-button size="small" @click="hCancel">取消</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import { getEmployesSimples } from '@/api/employees'
import { addDepartment, getDepartmentDetail, updateDepartment } from '@/api/departments'
export default {
  props: {
    id: {
      type: String,
      required: true
    },
    isEdit: {
      type: Boolean,
      required: true
    },
    originList: {
      type: Array,
      required: true
    }
  },
  data() {
    const validCode = (rule, value, callback) => {
      // console.log(this.originList, '----------')
      let existCodeList = this.originList.map(item => item.code)
      if (this.isEdit) {
        existCodeList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
      }
      // console.log(existCodeList)
      if (existCodeList.includes(value)) {
        callback(new Error(`部门编码${value}已存在,请重新输入`))
      } else {
        callback()
      }
    }

    const validName = (rule, value, callback) => {
      let existNameList = this.originList.filter(item => item.pid === this.id).map(item => item.name)
      // console.log(this.originList.filter(item => item.pid === this.id).map(item => item.name), '------------')
      // 编辑判断
      if (this.isEdit) {
      // 获取当前编辑的pid
      // console.log(this.originList, 'originList')
        const pid = this.originList.find(item => item.id === this.id).pid
        // const pid1 = this.originList.filter(item => item.id === this.id)[0].pid
        // console.log(pid, 'pid  find')
        // console.log(pid1 ,'pid1 filter')
        // 根据pid找到所有的同级兄弟(包含自己)
        const brothers = this.originList.filter(item => item.pid === pid)
        // console.log(brothers, '统计兄弟')
        // map出所有统计兄弟的部门名称,去掉自己
        existNameList = brothers.filter(item => item.id !== this.id).map(item => item.name)
      }
      // console.log(existNameList, '-----------')
      // console.log(this.originList.filter(item => item.id === this.id), '---------')
      existNameList.includes(value) ? callback(new Error(`该部门的名称${value}已存在,请重新输入`)) : callback()
    }

    return {
      list: [],
      form: {
        name: '',
        code: '',
        manager: '',
        introduce: ''
      },
      formRules: {
        name: [
          { required: true, message: '请输入部门名称', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入1~50的部门名称', trigger: 'blur' },
          { validator: validName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '请输入部门编码', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入1~50的部门编码', trigger: 'blur' },
          { validator: validCode, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '请输入部门负责人', trigger: 'change' }
        ],
        introduce: [
          { required: true, message: '请输入部门介绍', trigger: 'blur' },
          { min: 1, max: 300, message: '请输入1~300的部门介绍', trigger: 'blur' }

        ]
      }
    }
  },
  // 方法三: 侦听组件内props中属性或者data函数中属性的变化
  // watch: {
  //   // id: function(new_val, old_val) {
  //   //   console.log(new_val, 'new_val')
  //   //   console.log(old_val, 'old_val')
  //   //   this.loadDeparDetail()
  //   // }
  //   id: {
  //     handler(new_val, old_val) {
  //       console.log(new_val, 'new_val')
  //       console.log(old_val, 'old_val')
  //       this.loadDeparDetail()
  //     },
  //     immediate: true
  //   }
  // },
  // 生命钩子 created data与methods已经初始化，但是还没有编译模板 -- 发送请求
  created() {
    // 获取option下拉菜单数据
    this.loadEmployesSimples()
    // isEdit等于true的话获取部门详情信息
    // if (this.isEdit) {
    //   this.loadDeparDetail()
    // }
  },
  methods: {
    resetForm() {
      this.$refs.deptForm.resetFields()
    },
    // 获取部门详细信息渲染到表单上
    async loadDeparDetail() {
      try {
        const res = await getDepartmentDetail(this.id)
        this.form = res.data
      } catch (error) {
        console.log(error)
      }
    },
    // 渲染 option 下拉菜单
    async loadEmployesSimples() {
      try {
        const res = await getEmployesSimples()
        // console.log('wq w   w', res)
        this.list = res.data
      } catch (error) {
        console.log(error)
      }
    },
    // 提交编辑  发送put请求
    async doEdit() {
      await updateDepartment(this.form)
      this.$emit('success')
    },
    // 新增子部门 发送post请求
    async doAdd() {
      try {
        const params = { ...this.form, pid: this.id }
        const res = await addDepartment(params)
        if (!res.success) return this.$message.error(res.message)
        this.$message.success(res.message)
        // console.log(res)
        // this.$refs.deptForm.resetFields()
        this.form = {
          name: '',
          code: '',
          manager: '',
          introduce: ''
        }
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    hSubmit() {
      this.$refs.deptForm.validate((valid) => {
        if (!valid) return
        // this.doAdd()
        this.isEdit ? this.doEdit() : this.doAdd()
      })
      // this.isEdit ? 编辑 : 添加
    },
    hCancel() {
      this.$emit('cancel')
    }
  }
}
</script>

<style>

</style>
